
Description
IMR 8133 Enduron is a slow-burning rifle powder, designed to excel in magnum calibers where large case capacities are common. It functions with a pronounced slow burn rate, suitable for use in calibers such as 300 Winchester Magnum, 7mm Remington Magnum, and 6.5mm Remington Magnum, among others. The powder's extruded form ensures consistent metering through powder measures, enhanced by advanced granulation techniques that promote uniform charge weights. IMR 8133 Enduron features superior temperature stability, maintaining performance across a broad range of environmental conditions. This stability is crucial for handloaders seeking consistent velocities and pressures in varying climates. The powder is adorned with IMR’s Enduron technology, offering reduced copper fouling and clean burning characteristics, which serve to extend barrel life and reduce maintenance needs. Load developers will find IMR 8133 Enduron advantageous in achieving high energy loads with reduced muzzle flash, making it a trusted choice for precision long-range rifle enthusiasts.
Specifications
Burn Rate
0.2 (Slow)
Bulk Density
0.900 g/cm³
Density
1.600 g/cm³
Temperature Sensitivity
Low
Suitable Substitutes
Powders with a similar burn rate that may be suitable alternatives (also see burn rate chart):
Standard Loads — IMR 8133 Enduron
Verified load data combinations using IMR 8133 Enduron.
.244 H&H Mag.
Berger .243 | 105gr | Berger BT 105gr
.244 H&H Mag.
Brenneke .243 | 96gr | Brenneke TOG 96gr
.244 H&H Mag.
DTAC .243 | 115gr | DTAC RBT Closed Nose - Boron Nitride 115gr
.244 H&H Mag.
Frontier Bullets .243 | 80gr | Frontier BTSP 80gr
.244 H&H Mag.
Geco .243 | 105gr | Geco SOFTPOINT 105gr
.244 H&H Mag.
Hasler .243 | 90gr | Hasler Hunting 90gr
.244 H&H Mag.
Hornady .243 | 87gr | Hornady V-MAX 87gr
.244 H&H Mag.
Hornady .243 | 90gr | Hornady CX 90gr
.244 H&H Mag.
Hornady .243 | 108gr | Hornady ELD Match 108gr
.244 H&H Mag.
Impala Bullets .243 | 75gr | Impala LW CFN 75gr
.244 H&H Mag.
Impala Bullets .243 | 90gr | Impala RNFP KO 90gr
.244 H&H Mag.
Lapua .244 | 77gr | Lapua Scenar-L 77gr
.244 H&H Mag.
Lapua .243 | 90gr | Lapua ScenarL 90gr
.244 H&H Mag.
Lapua .243 | 105gr | Lapua Naturalis 90gr
.244 H&H Mag.
Lapua .243 | 77gr | Lapua Open Tip 105gr
.244 H&H Mag.
Lehigh Defense .243 | 85gr | Lehigh Defense Controlled Chaos 85gr
.244 H&H Mag.
MEN .243 | 85gr | MEN SPBT 85gr
.244 H&H Mag.
MEN .243 | 100gr | MEN FMJ 100gr
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